LM117 - Texas Instruments

LM117 Wide Temperature Three-Pin Adjustable Regulator

The LM117 and LM317-N series of adjustable 3-pin positive voltage regulators are capable of supplying in excess of 1.5 A over a 1.25-V to 37-V output range and a wide temperature range. They are exceptionally easy to use and require only two external resistors to set the output voltage. Further, both line and load regulation are better than standard fixed re.

Features

•1 For a newer drop-in alternative, see the LM317
• Typ. 0.1% load regulation
• Typ. 0.01%/V line regulation
• 1.5-A output current
• Adjustable output down to 1.25 V
• Current limit constant with temperature
• 80-dB ripple rejection
• Short-circuit protected output
• −55°C to 150°C operating temperature range (LM117) 2 Applications
• Multifunction printers
• AC drive power stage modules
• Electricity meters
• Servo drive control modules
• Merchant network and server PSU Typical Application LM317-N
*Needed if device is more than 6 inches from filter capacitors. †Optional—improves transient r.